KR20120003866A - Communication cable connection box with waterproof device of elastic rubber shrinking pipe - Google Patents

Abstract

The waterproof communication cable connection box includes a protective cover, a cable through end face, a hollow cylindrical pipe formed on the cable through end face, a rubber shrink pipe, and a flexible rigid plastic strip installed on the inner wall of the rubber shrink pipe. After the cable has passed through the cable connection box, the plastic strip is removed to tightly cover the hollow cylindrical tube and the portion of the cable that is exposed to the outside of the hollow cylindrical tube.

Description

COMMUNICATION CABLE CONNECTION BOX WITH WATERPROOF DEVICE OF ELASTIC RUBBER SHRINKING PIPE}

Cross Reference to Related Applications and Priority Claims

This application claims the benefit of International Patent Application No. PCT / CN2009 / 000257, filed March 10, 2009 with the World Intellectual Property Organization, the entire contents of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication cable splice box having a shrinkable rubber tube waterproofing device, and more particularly, to a simple and safe manufacturing without tools or an ignition source and to a widely varying outer diameter of an attachable cable. It is about a rice box. The present invention relates to a heat shrink cable in which a torch heat shrink tube is softened and relaxed once more by heating by torching the heat shrink tube for cable entry and sealing and then torching the remaining heat shrink tubes for cable entry. The problem of leakage in the cable splice box of the present technology of the splice box can be overcome.

Cables are buried underground as much as possible in every country in the world, so they rely mainly on networks of pipelines. Cable splice boxes that connect underground cables are placed in handholes and manholes in underground cable pipelines, and many manholes and handholes accumulate significant amounts of water each year, so cable splice boxes placed in these holes are year-round. Immerse in water Referring to FIG. 1, FIG. 1 is a cross sectional view of an underground layout of cable splice boxes. In FIG. 1, manholes 111 and 121 are positioned below the manhole covers 11 and 12. The cable splice boxes 13 and 14 are arranged in the manholes 111 and 121, and the cable splice boxes 13 and 14 are connected by the cable 16. The cable splice boxes 13 and 14 are connected to the other cable splice boxes (not shown), respectively, by the cables 15 and 17. In practice, the cables 15, 16, 17 of the manholes 111, 121 are curled. Regardless of whether the cable splice box is manufactured with an electrical cable or an optical fiber cable, if the waterproofing is insufficient, leakage into the cable splice box due to water that accumulates from the manhole or handhole will cause transmission in addition to accelerating cable degradation. This affects the quality of the cable, reducing the service life of the cable and causing transmission malfunction.

The prior art of cable networking and cable splicing in telecommunications, cable television, monitoring systems and other types of cable transmission industries has long relied on heat shrink cable splice boxes. Manufacturing costs for heat shrink cable splice boxes are relatively low, cables are simpler, faster to manufacture and have longer applicable outer diameters and are therefore widely used in the art, but heat shrink cable splice boxes are common. It is seriously pointed out because of the leakage problem. 2A, FIG. 2A is a vertical view of a heat shrink cable box in the current art. In FIG. 2A, the hollow cylindrical pipes 23A, 23B, 23C, 23D, 23E, 27 are constructed on the cable entry plate 21 of the heat shrink cable splice box 20 (abbreviated as splice box) and The main cables 24A, 24B are introduced into the splice box 20 through the hollow cylindrical pipe 27. The main cables 24A, 24B are separated by a manifold clip 29 used for the heat shrink tube. The separation cables 25A, 25B, 25C, 25D, 25E are introduced into the splice box 20 through the hollow cylindrical pipes 23A to 23E, respectively. Referring to Figures 2B and 2C, Figures 2B and 2C show the waterproof structure of a heat shrinkable cable splice box in the current art. 2B and 2C, the heat shrink cable splice box 30 (abbreviated as splice box) includes at least a protective cover 22, a cable entry plate 31, and hollow cylindrical pipes 32, 33A, 33B). The user first takes the main cables 24A, 24B and enters into the splice box through the hollow cylinder pipe 32 surrounded by the heat shrink tube 36 through the opening 38A. The main cables 24A, 24B are spaced apart by a manifold clip used for the heat shrink pipe, and then torch the heat shrink tube 36 and the manifold clip to the main cables 24A, 24B. The waterproofing of the cable entry plate through) is completed. The separation cable 35B penetrates the hollow cylindrical pipe 33B surrounded by the heat shrink tube 37, enters the splice box through the opening 38B, and then the separation cable 35B is drawn in and drawn out. The heat shrink pipe 33B is torched to complete the waterproofing of the plate. The spliced portions of the main cables 24A, 24B and the separation cable 35B are stored in a cable splicing distribution board 39. However, when torching the heat shrink pipe 37, the already torch heat shrink pipe 36 near the heat shrink pipe 37 is further heated, thus softening and relaxing to allow the splice box 30 to be removed. Cause leaks. Likewise, during the torch of the other heat shrink pipes of the cable entry opening 33A, the neighboring heat shrink pipes already torch are further heated, thus softening and relaxing, causing a leak in the splice box 30.

For example, the diameter of a cable entry plate of a telecommunication optical cable splice box is typically 15 cm to 20 cm or smaller, while the cable entry plate is generally required to provide access for six or more cables to penetrate, thus Openings for cable access on the cable entry plate are located very close to each other. Thus, in the current waterproofing technique of the cable access opening of the heat shrink cable splice box, the heat shrink tubes of the other cable access openings must be torched after completing the torch of the heat shrink tube of the first cable access opening. As a result, already completed heat-shrink tubes undergo additional torches, which soften and relax, resulting in leaks in the splice box. These shortcomings and serious deficiencies have always been an urgent and difficult problem to be solved in the technical field.

In Taiwan's telecommunications industry, for example, due to the growing popularity of fiber-optic broadband services, Chunghwa Telecom has invested heavily in fiber-optic cable in recent years, and many fiber-optic cable splice boxes have been used to access fiber-optic cable. In addition, it announced that it will invest a total of 150 billion Taiwan dollars ($ 30 billion) in NT dollars per year for five consecutive years starting from 2009 for the fiber network infrastructure. In recent years, the company has placed heat-shrink cable splice boxes in manholes and handholes, with well over half of them suffering severe leaks. If the leak problem in the heat shrink cable splice box is not solved, the company seals to establish a waterproof structure for mechanical cable splice boxes and cable access openings, which is three times more expensive than heat shrink cable splice boxes. I had to purchase a variety of mechanical means. Suitable cable outer diameters for these waterproof cable access openings are limited small, the necessary accessories are diverse and complex, the manufacturing procedure is cumbersome and requires a variety of tools, resulting in particularly inconvenience and high manufacturing costs. For mechanical cable splice boxes, the procurement cost has tripled, in addition to being less efficient and simpler than heat shrink cable splice boxes.

Thus, by eliminating the shortcomings of the heat shrink cable splice box and improving the waterproof capacity, not only can the communication quality problem caused by the leakage in the heat shrink cable splice box be avoided, but the cost of the investment enterprise can be considerably reduced. .

Therefore, Applicant intends to deal with the above-mentioned situation occurring in the prior art.

To overcome the shortcomings of the prior art, the present invention provides a communication cable splice box having a flexible and waterproof shrinkable rubber tubing device, the cable splice box comprising a protective cover, at least one cable entry plate and At least one flexible rubber shrinkable tube. At least one hollow cylindrical tube is configured on the cable entry plate and allows at least one cable to penetrate the at least one hollow cylindrical tube and enter the cable splice box. To waterproof the cable access opening, first surround the hollow cylindrical tube with a flexible rubber shrinkable tube (abbreviated as shrinkable tube), and then pass the cable through the shrinkable tube and the hollow cylindrical tube in sequence to ensure that the cable splice box Extracts one plastic strip wound from the inner wall of the shrinkable tube, extracts the plastic strip, and tightly surrounds the shrinkable tube around the hollow cylindrical tube and the portion of the cable that does not penetrate the hollow cylindrical tube. All.

Shrinkable tubes are hollow cylindrical synthetic rubber tubes with high flexibility and ductility, and the walls of the hollow cylindrical rubber tubes are first coated with a heat resistant rigid plastic strip that is wound into a screw like tube. The hollow diameter of the elongated shrinkable rubber tube is larger than the diameter of the hollow cylindrical tube and the outer diameter of the cable passing through the diameter of the hollow circular tube. When the plastic strip is extracted, the elongated hollow diameter immediately elastically contracts and returns to the small diameter before elongation, which is smaller than the outer diameter of the cable and the outer diameter of the hollow cylindrical tube passing through the hollow cylindrical tube. As a result, the portion of the cable not penetrating the hollow cylindrical tube and the outside of the hollow cylindrical tube are tightly surrounded by each other to form a waterproof structure. This waterproof structure solves the technical problems caused by the torch to waterproof the access opening for the cable in the heat shrink cable splice box. When torching other heat shrink tubes for the cable openings, the already completed heat shrink tubes are further torched, causing them to soften and relax, which often results in leaking problems in the splice box. The present invention utilizes a simple and safe structure that does not require tools or sources of ignition and, along with other advantages, makes the outer diameter of the cable wider, significantly reducing the cost of the investment firm.

The communication cable splice box is a direct direct splicing, mid-span splicing and branch splicing operation of three different types and forms of communication cable splicing. Can be used. In the case of straight splicing and midspan splicing, while using a conventional heat shrink cable splice box as an example, both the main cable and / or the splitting cable have one hollow cylindrical tube of splice box in one Can be penetrated by cables and splicing is carried out in the splice box. During the branch splicing operation of the backbone cable, the main cable after bending without breakage penetrates the hollow cylindrical tube in a dual cable manner, and then enters into the splice box to perform branch splicing operation of the backbone cable. do. In practice, however, the access of the separation cable is still done by splicing a single cable through the hollow cylindrical tube and entering the splice box. Thus, when branch splicing operations of the backbone cable are carried out, the cross-sections of the two cables of the main cable responsible for the midspan connection spliced into a round, elliptical or groove-less polygonal shape are corrected. Without using the proper way to do this, the flexible rubber shrinkable tube cannot provide effective waterproofing between the grooves of the two cables.

In using a communication cable splice box, the main cable is first introduced and then the separation cables are introduced. Thus, when the present invention utilizes the branch splicing operation of the backbone cable, it is possible to perform waterproofing of the hollow cylindrical tube in which the two main cables are introduced into the cable opening of the cable box by means of a heat shrink tube, while separating cable Their waterproofing is carried out by flexible rubber shrinkable tubes. In the first cable opening for introducing the main cable, the user first needs to waterproof the heat shrink tube by the torch before introducing the main cable into the first cable access opening, and after introducing the other separating cables, These separation cables are waterproofed using a flexible rubber shrinkable tube. Since no torch is required to waterproof using a flexible rubber shrinkable tube, the prior art problem of torching the heat shrinkable tube to complete the waterproofing of the first cable opening does not occur. In the case of torching other heat shrink tubes for the cable opening, already completed heat shrink tubes undergo additional torch, softening and relaxing, causing leakage in the splice box.

After studying the leak problem of the heat shrink cable splice box, the inventors of the present invention found two causes for the leak in the cable box. The first is due to poor waterproofing of the contact between the protective cover and the entry plate of the cable, the second is due to the loosening of the attachment between the heat shrink tube and the outside of the hollow cylindrical tube and the loosening of the attachment between the cable and the heat shrink tube. . Therefore, even if the problem of leakage of the contact portion between the protective cover and the cable entry plate is improved, leakage still occurs in many cable splice boxes.

The second cause described above is often caused by moving the cable box into or out of the manhole or handhole, threading out the disconnect cable, performing maintenance and such activities to perform cable rerouting. As a result of completing the heat shrink waterproofing of the splice box, the cable is likely to be twisted, bent and / or pressurized, and the waterproof portion of the heat shrink tube is relaxed, resulting in leakage in the splice box. In general, most cables are sheathed with polyethylene. However, the adhesion is limited between the heat adhesive covering the cable inside the heat shrink tube and the multi-coated polyethylene cable so that the cable is easily twisted, bent and / or relaxed under pressure.

To overcome the drawbacks of the prior art, through thorough and extensive research, the present invention includes at least one cable anchor on the outside of the splice box, the cable anchor comprising a first fixture and a second fixture. do. The first fixture is secured to the splice box, the second fixture is connected to the first fixture and the second fixture is secured to retract the cable of the splice box. The cable anchor also includes a support for connecting the first fixture with the second fixture. The cable anchors are formed of strong metals, plastics and combinations thereof that are resistant to warpage or molding. As the cable restraint reinforces the cable, moving the splice box causes the cables waterproofed by the heat shrink tubing to twist and move, but the cable, even if it is twisted, moved and pressurized, may On the second fixture of the. Since the waterproof portion enclosed by the heat shrink tube is located between the first fixture and the second fixture, the heat shrink tube is not relaxed due to pressure due to twisting and moving of the cable.

The cable anchors can be used not only to fix cables that have undergone heat shrink tube waterproofing, but also to fix cables that have undergone flexible rubber shrinkable tube waterproofing. The first fixture portion of the cable anchoring device may be integral with the cable access entry plate or may be embedded in the cable access entry plate, and also screw connection, mortise joint, clamp joint, ring fastener, band fastener, splice Similar means for securing to the box can be used. The second fixture may be a portion contiguous with the first fixture or may be mechanically connected to the first fixture. The incoming cables can be fixed on a second fixture used as a clamp joint, a ring fastener, a band fastener and similar means. The support, the first fixture and the second fixture may be integral or may be mechanically connected together, the first connecting end of the support being fixed on the first fixture while the second end of the support secures the incoming cable And the incoming cable can be fixed on the second end by using clamp joints, ring fasteners, band fasteners and similar means. Cable portions not yet surrounded by the shrinkable tube or the heat shrink tube, cable portions surrounded by the shrinkable tube or the heat shrink tube, and the convergence point of the two parts described above may be fixed by the cable fixing device. . In addition, the cables located in the splice box can be fixed using the cable anchoring device of the present invention.

The objects and advantages of the present invention described above can be further understood by referring to the following detailed description in conjunction with the accompanying drawings.

The present invention can effectively improve the prior art of torching heat shrink tubes to complete waterproofing one cable opening. In the case of torching other cable openings of the heat shrink tube, the already completed heat shrink tube is often further torched, causing the heat shrink tube to soften and relax, resulting in leaking problems in the splice box. The present invention utilizes a simple and safe structure that does not require tools or sources of ignition and, along with other advantages, makes the outer diameter of the cable wider, significantly reducing the cost of the investment firm.

1 is a cross-sectional view of a pipe of an underground layout of a cable splice box.
2A is a plan view illustrating a technique of a heat shrink cable splice box of the prior art.
Fig. 2B is a diagram showing a technique of the waterproof structure of the heat shrink cable splice box of the prior art.
FIG. 2C is a diagram illustrating a technique of a waterproofing structure of cables entering a conventional heat shrink cable splice box. FIG.
3A is a diagram showing a flexible rubber shrinkable tube used in the first embodiment of the present invention.
FIG. 3B shows a communication cable splice box having a flexible and waterproof shrinkable rubber tubing device, shown in a first embodiment of the present invention.
4 is a diagram illustrating a communication cable splice box having a flexible and waterproof shrinkable rubber tubing device according to a second embodiment of the present invention.
Fig. 5 is a diagram showing the cable fixing device of the communication cable splice box shown in the third embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples. It is noted that the following description of the preferred embodiments of the present invention is for illustration and description only, and is not intended to be exhaustive or to be limited to the specific forms disclosed.

The "communication cable connection box with a waterproof device of elastic rubber shrink pipe" of the present invention can be fully understood through the following implementation.

First embodiment

Reference is made to FIG. 3A showing the flexible rubber shrinkable tube used in the first embodiment of the present invention. In FIG. 3A, the flexible rubber shrinkable tube 40 (abbreviated as shrinkable tube) is an ethylene propylene rubber (EPR) tube 41 (hereinafter abbreviated as "rubber tube") having rigidity and ductility and rigid Manufactured by polyethylene plastic strip 42 (hereinafter abbreviated as "plastic strip"), wherein rubber tube 41 has a first opening 411 and a second opening 412, and plastic strip 42 Has a first end 421 and a second end 422. The rubber strip 42 is first enclosed in a spiral pattern in the inner wall of the hollow rubber tube 41, wherein the hollow diameter of the rubber tube 41 is elongated by the plastic strip 42, while the elongated rubber tube 41 is The hollow diameter is larger than the outer diameter of the hollow cylindrical tube of the cable splice box and larger than the outer diameter of the cable. The plastic strip 42 is ultrasonically welded every 5 cm so as to increase the strength of the tubular structure of the plastic strip 42 by installing a detachable solder joint on the plastic strip 42. In addition, the plastic strip 42 may be replaced with a refractory rubber or metal strip, and may extend the hollow diameter of the rubber tube 41.

Referring to FIG. 3B, FIG. 3B illustrates a communication cable splice box having a retractable rubber tubing device having flexibility and water resistance, as shown in the first embodiment of the present invention. In FIG. 3B, the communication cable splice box 50 (hereinafter abbreviated as “splice box”) is at least cable entry plate 51, protective cover, hollow cylindrical tubes 52, 53 and flexible rubber shrinkable. Tube 56, each of the hollow cylindrical tubes 52, 53 has an opening (not shown) through which the cable penetrates the cable entry plate 51, so that the cable Can penetrate the cable entry plate to enter therein. The splice box 50 may support two different forms of cable splicing: straight direct splicing and mid-span splicing. When waterproofing the seam between the splice box 50 and the cable, the first opening 561 of the flexible rubber shrinkable tube 56 (hereinafter abbreviated as "shrinkable tube") first After surrounding the hollow cylindrical tube 52, the cable 54 sequentially penetrates the hollow cylindrical tube 52 through the second opening 562 of the retractable tube 56 to the inside of the splice box 50. It is pulled in. Next, the first end 571 of the plastic strip 57 which has already penetrated the second opening 562 is extracted, and the hollow diameter extended by the plastic strip immediately contracts and returns to the small diameter before stretching. The small diameter is smaller than the outer diameter of the hollow cylindrical tube and the outer diameter of the cable. Continued extraction of the plastic strip 57 until the second end 572 of the plastic strip 57 separates from the shrinkable tube 56 causes the shrinkable tube 56 to be part of the cable 54 and the hollow cylinder. It is tightly wrapped around the tube 52 to achieve waterproofing of the splice box 50. This waterproofing is also shown in FIG. 3B, after extracting the plastic strip (not shown) from the shrinkable tube 58, the shrinkable tube tightly around a portion of the cable 55 and the hollow cylindrical tube 53. To achieve waterproofing of the cable access opening of the splice box.

The solution of the first embodiment of the present invention can effectively and individually waterproof all cables passing through the splice box without the need or necessity of torching the shrinkable tube, and the user can shrink the portion of the cable and around the hollow cylindrical tube. The plastic strip can be extracted with bare hands without the need for tools to tightly surround the possible tubes. In addition, the shrinkable tube is flexible. If the cable is twisted by placing the waterproofed splice box in the manhole or transporting it out of the manhole, the shrinkable tube is twisted accordingly, but no leakage into the joint between the shrinkable tube and the cable occurs and There is no leakage into the joint between the hollow cylindrical tubes.

Second embodiment

Referring to FIG. 4, FIG. 4 shows a communication cable splice box having a retractable rubber tubing device having flexibility and water resistance, as shown in a second embodiment of the present invention. In FIG. 4, the communication cable splice box 60 (hereinafter abbreviated as “splice box”) is at least cable entry plate 61, (partial) protective cover 62, hollow cylindrical tube 63, 64, 65), flexible rubber shrinkable tube 70, heat shrink tube 73, and manifold clip 74 used for heat shrink tube. The splice box 60 may support straight splicing, mid span splicing and branch slicing operations of the backbone cable, three different types and forms of splicing. In accordance with FIGS. 2A and 2B and the background art which is part of the present invention, the main cables 68 and 69 pass through the hollow cylindrical tube 64 surrounded by the heat shrink tube 73 and are used for heat shrink tube. (74) is used to clip the joints between the main cables (68, 69) and then torches the heat shrink tube (73) and the manifold clip (74) to the main cables (68, 69) and the hollow cylindrical tube (64). To achieve a waterproofing of the liver. Regarding the waterproofing of the cable 66 introduced into the hollow cylindrical tube 63, the same method as in the first embodiment is followed, and the flexible rubber shrinkable tube 70 (hereinafter, abbreviated as "shrinkable tube"). Of the first opening 701 first surrounds the hollow cylindrical tube 63, and then the cable 66 sequentially passes through the hollow cylindrical tube 63 through the second opening 702 of the retractable tube 70. It is drawn inside the splice box 60. Next, the first end 711 of the plastic strip 57 passing through the second opening 702 is extracted, and the diameter of the hollow cylindrical tube extended by the plastic strip 57 immediately contracts, so that Return to diameter If the plastic strip 57 continues to be extracted until the second end 712 of the plastic strip 57 is separated from the shrinkable tube 70, the shrinkable tube 70 may be a hollow cylindrical tube 63 and a cable. The part of 66 is tightly enclosed, and waterproofing of the splice box 60 is achieved. The result of this waterproofing is illustrated by the shrinkable tube 58 in FIG. 4, after extracting the plastic strip (not shown) from the shrinkable tube 58, the shrinkable tube is hollow cylindrical tube 65 and The part of the cable 67 is tightly wrapped.

Thus, in the second embodiment of the present invention, the user only needs to waterproof the heat shrink tube with a torch before introducing the main cable into the first cable access opening, and then after introducing the other separating cables, the flexible Waterproof using rubber shrinkable tubing. Since no torch is required to perform waterproofing using a flexible rubber shrinkable tube, the problem in the prior art of torching the heat shrinkable tube to complete the waterproofing of the first cable opening does not occur. When torching other cable openings of the heat shrink tube, it is often the case that the heat shrink tube that is already completed is additionally torched, causing the heat shrink tube to soften and relax, resulting in leaking problems in the splice box.

Third embodiment

Waterproofing of the first and second embodiments of the present invention can effectively solve the problem of leakage in the splice box. In addition, the user can use the cable anchoring device fixed to the outside of the splice box to fix the cable entering the splice box, to enhance the waterproofing of the splice box, and thus when transporting the splice box Or prevents loosening of the joint between the cable and the retractable tube when the cable is twisted or flexed.

Referring to Fig. 5, Fig. 5 is a diagram showing a cable fixing device of a communication cable splice box shown in the third embodiment of the present invention. In FIG. 5, the communication cable splice box 80 (hereinafter abbreviated as “splice box”) is at least cable entry plate 81, (partial) protective cover 82, hollow cylindrical tubes 83, 84, 85), flexible rubber shrinkable tubes 90, 91, and cable anchors. As shown in the first and second embodiments, the hollow cylindrical tube 85 which carries the incoming main cables 88 and 89 is surrounded by a heat shrink tube 92, so that the main cables 88 and 89 ) And the waterproofing between the hollow cable tube 85 is completed. In addition, the separation cables 86 and 87 are respectively introduced into the hollow cylindrical tubes 83 and 84 and surrounded by the flexible rubber shrinkable tubes 90 and 91, so that the separating cables 86 and 87 and the hollow cylindrical tube 83 are separated. 84) complete waterproofing.

5, the main cables 88 and 89 can be further fixed by the cable fixing device. The outer cable fixing device of the splice box 80 may fix the separating cable and / or the main cable. The cable anchoring device includes a first fixture 98 and a second fixture 100. The first fixture 98 is fixed on the splice box 80, which is positioned on the cable entry plate 81 by passing a screw hole (not shown) of the first fixture 98 through the screw 99. This is completed by forming a screw connecting portion having a screw receiving portion (not shown). The second fixture 100 is connected to the first fixture 98, the second fixture 100 being drawn into the splice box 80 and waterproofed with a heat shrink tube 92 to the main cables 88 and 89. ) Is fixed using the ring fastener 101. In addition, a clamp fastener or a band fastener may be used instead of the ring fastener 101. The cable anchoring device further includes a support 97 for connecting the first fixture 98 with the second fixture 100. Such cable anchoring device may be used by a separating cable fixture surrounded by a shrinkable tube.

As shown in FIG. 5, the separation cable 86 can be secured using a cable anchoring device, the cable anchoring device being a screw that secures the first fixture to the outside of the waterproof region of the hollow cylindrical tube-shrinkable tube. Through the installation of 96 (and other screws not shown in FIG. 5), the first fixture 93A having the clip 95 and the screw of the locking clamp fastener 94 are drawn into the splice box 80. And a second fixture 93B for fixing the cable 86. By designing the joint between the second fixture 93B and the first fixture 93A, the cable 86 enclosed by the shrinkable tube 90 is reinforced in the splice box 80 and thus the shrinkable tube The waterproof effect of 90 is enhanced.

The cable anchoring device further includes a support 93 for connecting the first fixture 93A and the second fixture 93B. The second fixture 93B and the support 93 may be integrated, and the first fixture 93A and the support 93 may be integrated. Alternatively, the first fixture 93A, the second fixture 93B, and the support 93 may be integrated. In addition, the support 93 may be connected to the first fixture 93A and may be fixed on the splice box 80. Likewise, the cable 86 drawn into the hollow cylindrical tube 83 and surrounded by the retractable tube 90 may be fixed in the same manner.

From the above descriptions of the first, second and third embodiments, the present invention has been described as embodiments which are considered to be the most feasible and preferred, but need to be limited to the disclosed embodiments. Please understand that there is no. Rather, the intention is to cover such various modifications and variations as fall within the spirit and scope of the claims as interpreted to the broadest extent so as to encompass all such various modifications and variations.

11, 12: manhole cover
13, 14: cable splice box
111, 121: manhole
15, 16, 17: cable
20: splice box
21: cable entry board
22: protective cover
23A, 23B, 23C, 23D, 23E: Hollow Cylindrical Pipe
24A, 24B: main cable
25A, 25B, 25C, 25D, 25E: Disconnect Cable
29: manifold clip
22: protective cover
35B: Disconnect cable
24A, 24B: main cable
36, 37: heat shrink tube
30: splice box
38A, 38B: opening
31: cable entry plate
39: splicing distribution plate
32, 33A, 33B: hollow cylindrical pipe
40: shrinkable tube
41: rubber tube
411: first opening
412: second opening
42: plastic strip
421: first end
422: second end
50: splice box
51: cable entry plate
562: second opening
57: plastic strip
52, 53: hollow cylindrical tube
54, 55: cable
56: shrinkable tube
561: first opening
571: first end
572: second end
58: shrinkable tube
58: shrinkable tube
60: splice box
61: cable entry plate
62: protective cover
63, 64, 65: hollow cylindrical tube
66, 67: cable
68, 69: main cable
70: shrinkable tube
57: plastic strip
701: first opening
702: second opening
711: first end
712: second end
73: heat shrink tube
74: manifold clip
80: splice box
81: cable entry plate
82: protective cover
83, 84, 85: hollow cylindrical tube
86, 87: disconnect cable
88, 89: main cable
90, 91: shrinkable tube
92: heat shrink tube
94: locking clamp fastener
95: clips
96: screw
93,97: support
93A, 98: first fixture
99: screw
93B, 100: second fixture
101: ring fastener

Claims (18)

A communication cable splice box having a waterproof shrinkable rubber tubing device,
Protective cover;
Cable entry plate;
A hollow cylindrical tube disposed on the cable entry plate;
Flexible rubber shrinkable tube; And
An auxiliary installation disposed on an inner wall of the flexible rubber shrinkable tube, wherein a cable is introduced into the communication cable splice box so that the hollow cylindrical tube and the exposed portion of the cable are tightly surrounded by the flexible rubber shrinkable tube and then removed A communication cable splice box containing a device. The method of claim 1,
The cable entry plate of the cable splice box comprises another hollow cylindrical tube,
The other hollow cylindrical tube supplies at least two cables that can penetrate the other hollow cylindrical tube and enter the cable splice box,
The at least two cables capable of penetrating the other hollow cylindrical tube are surrounded by a heat shrink tube to surround a portion of the cable that does not penetrate the other hollow cylindrical tube and the outside of the other hollow cylindrical tube. Cable splice box prepared to form a waterproof structure. The method of claim 1,
The cable splice box further includes at least one cable anchor,
The at least one cable fixing device,
A first fixture fixed on the cable splice box; And
A second fixture connected to said first fixture,
And the second fixture is introduced into the cable splice box to secure the cable to be waterproofed using one of a heat shrink tube and a flexible rubber shrink tube. The method of claim 3,
And the first fixture is embedded in the cable entry plate of the cable splice box. The method of claim 3,
And the first fixture is integrally formed on the cable entry plate of the cable splice box. The method of claim 3,
The first fixture is fixed to the cable entry plate of the cable splice box by one fixing method selected from the group consisting of a screw connection, a mortise joint, a clamp joint, a ring fastener and a band fastener. Fixing device. The method of claim 3,
And the second fixture is fixed to the cable by one fixing manner selected from the group consisting of a clamp joint, a ring fastener and a band fastener. The method of claim 3,
And a support for connecting the first fixture with the second fixture. The method of claim 8,
And the second fixture is integral with the support. The method of claim 8,
And the second fixture is mechanically connected to the support. The method of claim 8,
And said first fixture is integral with said support. The method of claim 8,
And the first fixture is mechanically connected to the support. The method of claim 8,
And the support is connected to the first fixture, and the fixture to be supported is fixed on the cable splice box. The method of claim 8,
And the support material is one material selected from the group consisting of metals, plastics and combinations thereof. A communication cable splice box having a waterproof shrinkable rubber tubing device,
Protective cover; And
At least one cable entry plate having the at least one hollow cylindrical tube such that at least one cable passes through at least one hollow cylindrical tube and enters into the cable splice box; And
At least one flexible rubber shrinkable tube, which is at least one hollow synthetic rubber tube having flexibility and ductility,
A flexible rigid plastic strip is wound around the inner wall of the hollow bore of the at least one hollow synthetic rubber tube, the outer diameter of the hollow cylindrical tube of the cable entry plate and the outer diameter of the cable passing through the hollow cylindrical tube. Elongate the hollow bore of the at least one hollow synthetic rubber tube larger,
When the plastic strip is extracted, the elongated hollow diameter immediately contracts elastically and returns to the small diameter before elongation, wherein the small diameter penetrates the outer diameter of the hollow cylindrical tube of the cable entry plate and the hollow cylindrical tube. Smaller than the outer diameter of the cable,
The at least one cable passing through the at least one hollow cylindrical tube is tightly enclosed by the flexible rubber shrinkable tube to a portion of the cable that does not penetrate the hollow cylindrical tube and to the outside of the hollow cylindrical tube. Telecom cable splice box, which is prepared to form a waterproof structure by wrapping. 16. The method of claim 15,
Further comprising a hollow cylindrical tube configured on the cable entry plate of the communication cable splice box,
The hollow cylindrical tube supplies at least two cables penetrating the hollow cylindrical tube and introduced into the communication cable splice box,
The at least two cables passing through the hollow cylindrical tube have a waterproof structure by surrounding the outside of the hollow cylindrical tube and the portion not passing through the hollow cylindrical tube in the at least two cables by a heat shrink tube. Cable splice box ready to form. 16. The method of claim 15,
Further comprises at least one cable anchor,
The cable fixing device,
A first fixture fixed on the communication cable splice box; And
A second fixture connected to said first fixture,
And the second fixture is introduced into the communication cable splice box to secure the cable to be waterproofed using one of a heat shrink tube and a flexible rubber shrink tube. A flexible rubber shrinkable tube for waterproofing cable entry of a communication cable splice box,
The communication cable splice box,
Protective cover; And
A cable entry plate having said at least one hollow cylindrical tube such that at least one cable passes through at least one hollow cylindrical tube and enters into said cable splice box,
Said flexible rubber shrinkable tube is a hollow synthetic rubber tube having flexibility and ductility,
The flexible rigid plastic strip is wound around the inner wall of the hollow bore of the hollow synthetic rubber tube and is larger than the outer diameter of the hollow cylindrical tube of the cable entry plate and the outer diameter of the cable passing through the hollow cylindrical tube. Elongate the hollow bore of
When the plastic strip is extracted, the elongated hollow diameter immediately contracts elastically and returns to the small diameter before elongation, wherein the small diameter penetrates the outer diameter of the hollow cylindrical tube of the cable entry plate and the hollow cylindrical tube. Smaller than the outer diameter of the cable,
The at least one cable passing through the at least one hollow cylindrical tube is tightly enclosed by the flexible rubber shrinkable tube to a portion of the cable that does not penetrate the hollow cylindrical tube and to the outside of the hollow cylindrical tube. Flexible rubber shrinkable tube ready to form a waterproof structure by wrapping.

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